/Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchyDefines.h
The type of meta data stored on an element
enum ERigMetadataType { Bool, BoolArray, Float, FloatArray, Int32, Int32Array, Name, NameArray, Vector, VectorArray, Rotator, RotatorArray, Quat, QuatArray, Transform, TransformArray, LinearColor, LinearColorArray, RigElementKey, RigElementKeyArray, Invalid, }